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HT4084ARTZ

Public Made by Adom

by adom

HTCSEMI Battery Management, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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HT4084ARTZ

HTCSEMI · Battery Management · SOT-23-5

HT4084ARTZ from HTCSEMI, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CHRG output Charge indicator pin, open-drain. Connect to the cathode of an LED (anode to VCC via ~1K resistor). Pin is pulled low during charging to light the LED (5mA drive typical); high-Z when charging completes.
2 GND power_in Device ground reference.
3 BAT power_out Battery charge current output. Connect to Li-ion battery positive terminal. Requires at least 10uF ceramic bypass capacitor to GND. Regulated float voltage 4.2V (typ), 4.15-4.25V.
4 VCC power_in Supply input from USB / AC adapter. Recommended operating range 4-6V (typ 5V); UVLO ~4.0V rising / 3.9V falling; input OVP at 6.25V; absolute max 24V (survives 28V surge). Bypass with >=10uF ceramic close to VCC/GND.
5 PROG passive Constant-current programming and charge-current monitor pin. Connect a 1% resistor RPROG to GND to set ICC per IBAT = (VPROG / RPROG) x 1000. Voltage on this pin is 0.05V in SC mode, 0.1V in TC mode, and 1V in CC mode. Example: RPROG = 2K sets ~500mA; 10K sets ~100mA.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • HT4084ARTZ
  • HT4084ARTZBRTZ

CAD (KiCad official)

  • Symbol: HT4084ARTZ
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ht4084artz-etched.step / ht4084artz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht4084artz.step / ht4084artz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HTCSEMI datasheet (11 pp, sha256 28e90be167683757, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF